The advance of technology has allowed for home surveillance cameras installed in homes to sync with our phones, so it is possible to see what’s happening in real time while away at work or on vacation.

Sandie Kaplanis was using such a device in her home to watch Amber, her 14-year old chocolate Labrador. Kaplanis was checking in on her dog one day as she regularly did, only to see an image of a little girl she had never seen before.

“I log back out and I log back in and I see my dog,” she told KMOV Monday. “Then I log back in and I see this little girl. And this happened over a period of 24 hours.”

Kaplanis’ son gave her the Vivitar device for Christmas and she said everything appeared to be working fine until she saw the mysterious girl.

Kaplanis contacted Vivitar, which offered no explanation as to how the image might have appeared. They apologized for the error and said it would investigate the matter. It also sent her some new cameras.

“I wanted people to know that there’s a chance that if you buy this and set it up for your little baby, that somebody else could be watching,” Kaplanis said.

A Vivitar spokesperson said the company was still working to figure out exactly what might have gone wrong, but had not seen anything strange on its end.